James a



(No Model.)

. J. A. WATSON.

MECHANICAL MOVEMENT. No. 426,343. Patented Apr. 22, 1890.

CARRIAGE.

qvvcmeooeo 314/02 1441016 citizen of the UnitedStates, residing at VVash- PATENT OFFICE.

JAMES A. IVATSON, OF VVASI-IIN MECHANICAL SPECIFICATION forming part of Letter GTON, DISTRICT OF COLUMBIA.

MOVEMENT.

5 Patent No. 426,343, dated April 22, 1890.

Application filed November 21, 1889. Serial No. 331,084. (No model.)

To all whom it may concern.-

Be 1t known that I, JAMES A. WATSON, a

ington, in the District of Columbia, have invented a certain new and useful Mechanical Movement Applicable to Matrix-Making Machines, Type-WVriters, 850., of which the following is a specification.

My invention relates to feeding mechanism, and more particularly to a device whereby definite movements of the feeding mechanism may be made to impart proportionately greater or less movements to the object to be fed, the percentage of increase or decrease being governed at the will of the operator. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan view, and Fig. 2 is a plan of a modification.

Similar reference-signs refer to like parts throughout the several views.

This mechanical movement is adapted to be used as a justifying device in matrix-making machines and typewriters, and I have illustrated it as applied to this purpose, but it is also applicable to other classes of machines wherein it is desirable to vary the amplitude of any movement by small and determinate quantities.

In the drawings, 1 represents the object to be fed, and I shall hereinafter designate such object by the word carriage, that being a common and well-understood term. A spring or motor 2 impels the carriage in the direc tion of the arrow. r

An escapement device 5, pivoted at 6 to the main frame A, carries two pawls, one of which is held normally in engagement with the teeth of a rack 4 by means of a spring 7. On one end of the escapement device is an armature 8, which is periodically attracted by a magnet 9, thereby permitting the rack 4 to be fed along under the influence of a motor 2.

The rack 4 and the carriage are guided in any suitable manner to move in substantially parallel directions The parts 4 to 9, inclusive, I shall hereinafter designate, broadly, as a feeding device. This feeding device is no part of my present invention, and maybe of any desired form, either uniform or variable, and either an escapement or positive in its action. guide-rail 10, having a slot 11, is pivoted at 12 to the main frame, and has its free end connected by a rod 13 to a setting-lever 14. The lever 14 is pivoted at 15 to the main frame, and provided at its free end with a thumb-piece and an index 16 in proximity to a dial 17. p

In matrix-making machines the type-dies are of differentwidths, but all of the widths are multiples of a small definite unit called the unit-space. Thus an ioccupies two units, an '11. three units, and an m five units. The matter allotted to the line of print usually fallsshort of or exceeds the amount of space in the line, and a number of extra units of space have to be thrown in, or the matter crowded to justify the line.

It is one of the functions of my invention to expand or contract the matter allotted to a line automatically, so as to cause the line to justify when the index is set at the point on the dial corresponding'to the number of unit-spaces to be added or subtracted.

In Fig. 1 I have. indicated on the dial the number of units required to be added or subtracted, and in Fig. 2 I have indicated the actual amount of matter in the line, it being immaterial which form of graduation is used.

In certain kinds of work-such as tabular work-a justifieris not required, and in such case the index may be set at zero, thereby setting the guide-rail parallel to the line of movement of the carriage and causing the exact movements'of the feeding device to be transmitted to the carriage.

In Fig. 1 a lever 20 is pivoted at 21 to the rack 4, and provided with a cam-slot 22 and a pin 23 at its free end, which engages the slott 11 in the guide-rail 10. A pin 24, de pending from the extension 3 of the carriage is engaged by the cam-slot 22.

In Fig. 2, an elbow-lever is pivoted at 31 to a projection 32 on the end of rack 4. A pin 36 on one arm of lever 30 is engaged by slot 11 and guide-rail 10, and the other arm of the lever is connected by link 33 with an extension 3 of the carriage. The length of link 33 is made adjustable by means of the reversely-threaded nut 34 and the checknut 35.

The operation of the device shown in Fig.1

IOO

is as follows: When the guide-rail lOis set at an angle to the direction of the movement of the carriage, the lever 20 will be rotated about its pivot 21 when the carriage 20 is moved, and the cam-slot 22, engaging-the pin 2et,will cause the carriage to move relatively to the rack 4- It is thus evident that a certain movement of the feeding device may cause a greater or-less movement of the carriage, and that the relative amounts of said movement will depend upon the direction of the guide-rail, which is directly controlled by the index and dial. The slot 22 is formed so as to cause the relative movements of the feeding device and carriage to be proportional to the movements of the feeding device. In justifying, if, for instance, a line of the full width of the column contains one hundred units, and the actual amount of matter to be run into the line occupies but eighty units, the index is set at 20 on the dial, (or 80, if the dial shownin Fig. 2 be used,) the effect of which is to cause the carriage to move the full width of the column While the feeding device moves eighty units in spelling out the line to be printed.

- The operation of the modification shown in Fig. 2 is similar and need not be explained. At the beginning of each line the pins 23 and 36 should occupy positions concentric with the pivots 12, so that the inclination of the guide-rail will not influence the position of the first letter in each line. The position of the first letter may, however, be adjusted by means of the nuts 34: and 35. i

I do not propose to limit myself to the specific mechanism herein described, as other modifications within the scope of my inven tion will readily suggest themselves to a skilled mechanic.

I claim- 1. The combination, with a carriage or movable element, a feeding device therefor, and an intermediate adj unctive device for varying the movement of the carriage without varying the movement'of the feeding device.

2. In combination, a carriage, a feeding device, and intermediate mechanism whereby a definite movement of the feeding device may cause a greater or less movement of the carriage.

3. The combination, substantially as set forth, of a carriage or other movable element, afeeding device therefor, a pivoted guider. i1, and a movable device having an operative connection with the feeding device, carriage, and guide-rail, whereby the position of the guide-rail controls 'the movement of the carriage.

4. In combination, a pivoted guide-rail, parts 3 l, movable relatively thereto in substantially parallel directions, and devices connecting said parts and engaging said guiderail, whereby when the parts 3 4: are moved relatively to the guide-rail they may be caused to move'relatively to each other.

5. In combination, a carriage, a feeding device for operating said carriage, and a cam having operative connection with at least one of said parts and a variable controller for said cam.

6. In combination,-a feeding device, a carriage fed thereby, mechanism intermediate said feeding device and carriage, and adial and index controlling said mechanism, whereby the amount of movement imparted to the carriage by a definite movement of the feeding device may be governed.

7. In combination, a carriage, a feeding de vice, mechanism adapted to move the carriage relatively to the feeding device, and a controller for said mechanism, substantially as described.

. 8. In combination, a feeding device, a carriage, a cam pivotally attached to one of said parts and having its cam-surface in engagement with the other, and a guide-rail pivoted to a fixed portion of the machine, said guiderail engaging said cam and controlling its rotation during the movements of the feeding device. I

9. In combination, a feeding device, a carriage, a cam pivotally attached to one of said parts and having a cam-slot engaging a pin upon the other, and a pivoted guide-rail having a slot engaging a pin upon the cam, whereby the guide-rail controls the rotation of the cam during the movements of the feeding device.

J. A. WATSON.

"Witnesses:

CHAS. I-I. VERRILL, N. W. KING. 

